Update: This post has been updated to omit Offscreen Canvas which is not available in Safari 11.1 on macOS and Safari on iOS 11.3.

Security researchers have recently uncovered security issues known as Meltdown and Spectre.

Today we’re excited to roll out some improvements to how we deliver WebKit builds.

With the release of iOS 11 and macOS High Sierra, the new Safari brings impressive performance improvements and great new WebKit features to the web.

Adobe has announced it will stop distributing and updating Flash Player at the end of 2020 and is encouraging web developers to migrate any existing Flash content to open standards.

This is a guest post from the Safari team about changes to how Safari handles HTML5 video and audio auto-play.

An overview of the new web features that shipped in Safari with the release of iOS 10.3 and macOS Sierra 10.12.4.

Multi-Touch gestures have always been an integral part of the iPhone experience, but pinch and double tap were just the beginning of the story.

15 years ago today, the first commit was made to the public WebKit repository.

Last week, a new version of Safari shipped with the release of iOS 9.3 and OS X El Capitan 10.11.4.

This week, I committed WebKit changes r92823 and r93001.